The GBX0400161401F: The 16:1 reduction ratio drops a 3000 rpm motor output to 187.5 rpm at the load shaft — common for conveyor drives, rotary indexing tables, or agitators where speed reduction and torque multiplication are the goal, not positional accuracy. Continuous output torque is 20 Nm at 100 rpm, with a peak of 32 Nm for transient overloads like breakaway torque. Design the coupling and downstream shafting for the continuous figure; the peak is for acceleration and momentary stalls, not steady running. Efficiency sits at 94 % — typical for a straight-tooth planetary. Helical-gear stages would push this to 96–97 % but add axial length; the straight-tooth design keeps the 40 mm diameter package compact.
Backlash and load limits — where this gearbox fits and where it doesn't
Maximum torsional backlash is 28 arc.min — that's roughly 0.47° of rotational slop at the output shaft under reversing load. Fine for speed reduction or simple on/off indexing; not for servo positioning, pick-and-place, or any application where lost motion causes scrap or rework. Axial force (Fa) is 200 N for a 10000-hour life, dropping to 160 N for the full 30000-hour service life at 100 rpm. Radial force (Fr) follows the same derating curve. Both are measured at mid-span on the output shaft — overhung loads or belt drives that pull the shaft off-centre reduce the allowable radial force further. Service life is 30000 hours at 100 rpm and 30 °C ambient, and the gearbox is lubricated for life — no oil-change interval to schedule, no breather to maintain. That's about 3.4 years of continuous 24/7 operation before the grease degrades.
Obsolete — sourcing reality for the GBX0400161401F
The 'current' lifecycle-stage flag in the spec table is a data inconsistency — treat the part as end-of-life for BOM planning. Available through independent surplus and broker channels. Quantities are lot-specific and confirmed at the time of quote — no blanket stock commitment. The 40 mm diameter, 16:1 ratio, and 20 Nm continuous torque are the parameters to match if you're evaluating a functional replacement.